Given the following equation: 3C12 (g) + 8NH3 (g) → N2(g) + ONH4Cl (S)
How many moles of NH3 are required to produce 12 moles of
NH4Cl?

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2